If you're visiting AZ then theres the windgate ranch festival of speed on the 26th. http://100club.org/wp-content/uploads/2010/07/flyer2011.pdf
Worth delaying your return for. There are a lot of rare cars in Scottsdale that might show up. Last year (sadly, I didn't make it): http://www.ferrarichat.com/forum/showthread.php?t=273731 Inaugural year (I did make it): http://www.ferrarichat.com/forum/showthread.php?t=234179
I discovered that event before I came out here and looks awesome.. naturally disappointed that I would have to miss since I do have to return on Friday. I ususally come out in March so I will make it fit next time. Appreciate the info. Enjoy the show. I will be attending the Ferrari annual meet in Georgia in June. Barbara